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Extração da Volatilidade do Ibovespa
[Estimating Ibovespa's Volatility]


  • Souza-Sobrinho, Nelson


This paper estimates the conditional volatility of the main Brazilian stock market index (Ibovespa), using traditional models of the GARCH family and models of stochastic volatility (SV). Most model selection and performance criteria suggest that both aproaches capture well Ibovespa's volatility, with a slight advantage of the EGARCH(1,1) model. Additionally, the two approaches also behave similarly in practical applications such as the calculation of Value at Risk (VaR).

Suggested Citation

  • Souza-Sobrinho, Nelson, 2001. "Extração da Volatilidade do Ibovespa [Estimating Ibovespa's Volatility]," MPRA Paper 15571, University Library of Munich, Germany.
  • Handle: RePEc:pra:mprapa:15571

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    More about this item


    Conditional volatility; Garch; Ibovespa.;
    All these keywords.

    JEL classification:

    • C13 - Mathematical and Quantitative Methods - - Econometric and Statistical Methods and Methodology: General - - - Estimation: General
    • C22 - Mathematical and Quantitative Methods - - Single Equation Models; Single Variables - - - Time-Series Models; Dynamic Quantile Regressions; Dynamic Treatment Effect Models; Diffusion Processes


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